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AF_UNIX: Implement SO_TIMESTAMP and SO_TIMETAMPNS on Unix sockets

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Userspace applications can already request to receive timestamps with:
setsockopt(sockfd, SOL_SOCKET, SO_TIMESTAMP, ...)

Although setsockopt() returns zero (success), timestamps are not added to the
ancillary data. This patch fixes that on SOCK_DGRAM and SOCK_SEQPACKET Unix
sockets.

Signed-off-by: Alban Crequy <alban.crequy@collabora.co.uk>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alban Crequy 2010-10-04 08:48:28 +00:00 • committed by David S. Miller
parent d6bf781712
commit 3f66116e89
1 changed files with 5 additions and 0 deletions
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5
net/unix/af_unix.c
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@ -1511,6 +1511,8 @@ restart:
goto restart; goto restart;
} }
if (sock_flag(other, SOCK_RCVTSTAMP))
__net_timestamp(skb);
skb_queue_tail(&other->sk_receive_queue, skb); skb_queue_tail(&other->sk_receive_queue, skb);
unix_state_unlock(other); unix_state_unlock(other);
other->sk_data_ready(other, len); other->sk_data_ready(other, len);
@ -1722,6 +1724,9 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
if (err) if (err)
goto out_free; goto out_free;
if (sock_flag(sk, SOCK_RCVTSTAMP))
__sock_recv_timestamp(msg, sk, skb);
if (!siocb->scm) { if (!siocb->scm) {
siocb->scm = &tmp_scm; siocb->scm = &tmp_scm;
memset(&tmp_scm, 0, sizeof(tmp_scm)); memset(&tmp_scm, 0, sizeof(tmp_scm));